Ground wires, other than lightning protection wires not attached
to equipment or ground wires on grounded structures, shall be covered by
metal pipe or suitable covering of wood or metal for a distance above ground
sufficient to protect against mechanical injury but in no case shall such
distance be less than 7 feet, Such covering may be omitted providing the
ground wire in this 7 -foot section has a mechanical strength at least equal
to the strength of No.6 A WG medium-hard-drawn copper.

Portions of ground wires which are on the surface of wood
poles and within 6 feet vertically of unprotected supply conductors supported
on the same pole, shall be covered with a suitable protective covering (see
Rule 22.2).

Strikeout and Underline Version
Rule 84.6-B

84.6-B. Ground Wires

Ground wires, other than lightning protection wires
not attached to equipment or ground wires on grounded structures, shall be
covered by metal pipe or suitable covering of wood or metal or of plastic
pipe material designated as Type II in the standard specified in Rule 22.2
, for a distance above ground sufficient to protect against mechanical injury,
but in no case shall such distance be less than 7 feet. Such covering may
be omitted providing the ground wire in this 7-foot section has a mechanical
strength at least equal to the strength of No.6 AWG medium-hard-drawn copper.

Portions of ground wires which are on the surface of wood poles and within
6 feet vertically of unprotected supply conductors supported on the same
pole, shall be covered with a suitable protective covering (see Rule 22.2).

Final Version
Rule 84.6-B

84.6-B. Ground Wires

Ground wires, other than lightning protection
wires not attached to equipment or ground wires on grounded structures, shall
be covered by metal pipe or suitable covering of wood or metal or of plastic
pipe material designated as Type II in the standard specified in Rule 22.2,
for a distance above ground sufficient to protect against mechanical injury,
but in no case shall such distance be less than 7 feet. Such covering may
be omitted providing the ground wire in this 7-foot section has a mechanical
strength at least equal to the strength of No.6 AWG medium-hard-drawn copper.

Portions of ground wires which are on the surface of wood poles and within
6 feet vertically of unprotected supply conductors supported on the same
pole, shall be covered with a suitable protective covering (see Rule 22.2).